Most of us consider an earthquake an 'act of God.' Even if we don't believe in any particular god. We believe that certain things are beyond the cause and effect of humans. But is it so???
There is now talk that a dam that created a reservoir in China may have caused or hastened the earthquake that left 80,000 people dead or missing in Sichuan Province. Seems all that weight of water less than a mile from a fault line could change the actual geological activity.
With a dam fifty stories tall you might really be able to change nature at its most basic. Which leads me to wonder if we can the a force for preventing or delaying seismic activity. But probably not. Our best efforts at intended consequences seem to always go off track.
See the story here in The New York Times.